Intel 05-2409-003 Manual Do Utilizador

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The Global Call routing functions use the device handles of resources such as a voice channel, a 
media resource, or a network time slot. The gc_GetResourceH( ) function can be used to obtain 
the network, media and voice device handles, associated with the specified line device. 

The gc_GetResourceH( ) function, with a resourcetype of GC_MEDIADEVICE returns the 
media device handle for the specified line device. 

The gc_GetResourceH( ) function, with a resourcetype of GC_NETWORKDEVICE returns the 
network device handle for the specified line device. 

The gc_GetResourceH( ) function, with a resourcetype of GC_VOICEDEVICE, returns the voice 
device handle only if the specified line device has a voice, media, or tone resource associated with 
it, for example, if a voice channel was specified in the gc_OpenEx( ) function devicename 
parameter, or if the voice channel was subsequently attached to the line device and has remained 
attached to that line device. 

Refer to the appropriate Global Call Technology Guide for technology-specific information on 
routing resources when using the gc_OpenEx( ) function to specify a voice or media resource, or 
when using the gc_AttachResource( ) function to associate a voice or media resource with a 
Global Call line device. 

Global Call Feature Transparency and Extension (FTE) provides a common interface to multiple 
network interface specific libraries for features that are abstracted across multiple call control 
libraries (see 

, on page 20 and 

, on page 21). FTE is described in the 

following topics:

FTE is comprised of a number of Global Call functions. These functions provide the flexibility to 
extend the generic Global Call API to access all technology or protocol-specific features unique to 
any given network interfaces that were formerly only accessible via their native technology call 
control libraries. Thus, all technology-specific features may be accessible from the application 
solely via the singular Global Call library interface, thereby alleviating the need to access these call 
control libraries directly via additional APIs.